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When a star like the Sun begins to run out of helium to burn, it will blow off huge clouds of gas and dust. These outbursts can form spectacular structures such as the one seen in the Cat's Eye nebula. This image of the Cat's Eye contains both X-rays from Chandra around the center and visible light data from the Hubble Space Telescope, which show the series of bubbles expelled by the star over time. To listen to these data, there is a radar-like scan that moves clockwise emanating from the center point to produce pitch. Light that is further from the center is heard as higher pitches while brighter light is louder. The X-rays are represented by a harsher sound, while the visible light data sound smoother. The circular rings create a constant hum, interrupted by a few sounds from spokes in the data. The rising and falling pitches that can be heard are due to the radar scan passing across the shells and jets in the nebula.  (Credit: NASA/CXC/K. Arcand and SYSTEM Sound/M. Russo & A. Santaguida, 2021)

Cat's Eye Nebula Sonification

Since 2003, the black hole at the center of the Perseus galaxy cluster has been associated with sound. This is because astronomers discovered that pressure waves sent out by the black hole caused ripples in the cluster’s hot gas that could be translated into a note — one that humans cannot hear some 57 octaves below middle C. Now a new sonification brings more notes to this black hole sound machine. A new sonification — that is, the translation of astronomical data into sound — is being released in time for NASA’s Black Hole Week this year.

In some ways, this sonification is unlike any other done before because it revisits the actual sound waves discovered in data from NASA’s Chandra X-ray Observatory. The popular misconception that there is no sound in space originates with the fact that most of space is essentially a vacuum, providing no medium for sound waves to propagate through. A galaxy cluster, on the other hand, has copious amounts of gas that envelops the hundreds or even thousands of galaxies within it, providing an avenue for the sound waves to travel.

In this new sonification of Perseus, the sound waves that were previously identified were extracted and made audible for the first time. The sound waves were extracted in radial directions, that is, outwards from the center. The signals were then resynthesized into the range of human hearing by scaling them upward by 57 and 58 octaves above their true pitch. Another way to put this is that they are being heard 144 and 288 quadrillion (1,000,000,000,000,000) times higher than their original frequency. The radar-like scan around the image allows you to hear waves emitted in different directions. In the visual image of these data, blue and purple both show X-ray data captured by Chandra.

Learn more: https://chandra.si.edu/photo/2022/sonify5/ 

Sonification Credit: NASA/CXC/SAO/K.Arcand, SYSTEM Sounds (M. Russo, A. Santaguida)

Black Hole Sonification: Perseus

Studied by scientists for decades, the black hole in Messier 87, or M87, gained celebrity status in science after the first release from the Event Horizon Telescope (EHT) project in 2019. This new sonification does not feature the EHT data, but rather looks at data from other telescopes that observed M87 on much wider scales at roughly the same time. The image in visual form contains three panels that are, from top to bottom, X-rays from NASA’s Chandra X-ray Observatory, optical light from NASA’s Hubble Space Telescope, and radio waves from the Atacama Large Millimeter Array in Chile. The sonification scans across the three-tiered image from left to right, with each wavelength mapped to a different range of audible tones. Radio waves are mapped to lowest tones, optical data to medium tones, and X-rays detected by Chandra to the highest tones. The brightest part of the image corresponds to the loudest portion of the sonification, which is where astronomers find the 6.5 billion solar mass black hole that EHT imaged.

Learn more: https://chandra.si.edu/photo/2022/sonify5/ 

Sonification Credit: NASA/CXC/SAO/K.Arcand, SYSTEM Sounds (M. Russo, A. Santaguida)

Black Hole Sonification: M87

Measurements collected by the Waves instrument aboard NASA’s Juno spacecraft during its close flyby of Jupiter’s moon Europa on Sept. 29, 2022 have been converted to an audible frequency. The variation of frequency of the plasma waves observed near Europa can be heard as the plasma density varies.
For more information about NASA’s Juno mission, visit: http://nasa.gov/juno and https://missionjuno.com 
Details about the Europa flyby can be found at: https://www.nasa.gov/feature/jpl/nasa-s-juno-will-perform-close-flyby-of-jupiter-s-icy-moon-europa
Credit: NASA/JPL-Caltech/SwRI/Univ of Iowa

Audio from NASA’s Juno Mission: Europa Flyby

Courtesty of Electric and Magnetic Field Instrument Suite and Integrated Science (EMFISIS)aboard NASA’s Van Allen Probes team at the University of Iowa

Chorus Radio Waves within Earth's Atmosphere

Saturn is a source of intense radio emissions, which were monitored by our Cassini spacecraft. The radio waves are closely related to the auroras near the poles of the planet. These auroras are similar to Earth's northern and southern lights. This is an audio file of radio emissions from Saturn.

Cassini: Saturn Radio Emissions #1

This track is made by Elektron Octatrack and Analog Heat +FX.(And a little EQ in mastering)
You can download an AH preset file below.

https://drive.google.com/file/d/1LglphzXxaddyYsa98G9Tzi4osK9b_L1W/view?usp=sharing

Have Fun!

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Video : https://youtu.be/YvCrGjhL7D4?si=w4ITTk-gRT6-sefx

Piece-2

And beware the weird radio emissions Galileo gathered from Jupiter's largest moon, Ganymede.

Beware of Jupiter’s Largest Moon Ganymede

These melodious tones are created at a special frequency in a plasma with a magnetic field. The frequency is set by the number of electrons in a given volume (the electron density) and the strength of the magnetic field. Hence, the frequency of these waves, called upper hybrid waves, can provide a very accurate measure of the density of the plasma; a fundamental property of the Jovian environment of interest to scientists. These emissions were acquired by Voyager 2 as it passed through the outer magnetosphere in 1979.

Voyager Plasma Sounds

New research from the up-close Grand Finale orbits of NASA’s Cassini mission shows a surprisingly powerful interaction of plasma waves moving from Saturn to its moon Enceladus. Researchers converted the recording of plasma waves into a “whooshing” audio file that we can hear -- in the same way a radio translates electromagnetic waves into music. Much like air or water, plasma (the fourth state of matter) generates waves to carry energy. The recording was captured by the Radio Plasma Wave Science (RPWS) instrument Sept. 2, 2017, two weeks before Cassini was deliberately plunged into the atmosphere of Saturn. 

For more information, visit: saturn.jpl.nasa.gov 

Credit: NASA/JPL-Caltech/University of Iowa

Sounds of Saturn: Hear Radio Emissions of the Planet and Its Moon Enceladus

Space becomes “sonified” in this visualization of a cluster of galaxies imaged by NASA's Hubble Space Telescope. Time flows left to right, and the frequency of sound changes from bottom to top, ranging from 30 to 1,000 hertz. Objects near the bottom of the image produce lower notes, while those near the top produce higher ones. Most of the visible specks are galaxies housing countless stars. A few individual stars shine brightly in the foreground. Stars and compact galaxies create short, clear tones, while sprawling spiral galaxies emit longer notes that change pitch. The higher density of galaxies near the center of the image — the heart of this galaxy cluster, known as RXC J0142.9+4438 — results in a swell of mid-range tones halfway through the video. Hubble's Advanced Camera for Surveys and Wide Field Camera 3 acquired this image on Aug. 13, 2018. Video: https://svs.gsfc.nasa.gov/13061

Credit: NASA/Hubble/SYSTEM Sounds (Matt Russo/Andrew Santaguida)

Sonification of a Hubble Deep Space Image

Hello, we’re NASA. You may have seen our astronauts, rocket launches, or Mars rovers — but have you heard our sounds? From interviews with astronauts and engineers to stories that take you on a tour of the galaxy, NASA’s audio offerings let you experience the thrill of space exploration without ever leaving Earth.

Black Hole Sonification: Perseus

NASA

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